"I see it in her eyes, I see it in her face and I see it in her smile. I've seen her smile for years. I know her smile. I don't like the one I'm seeing now," Thomas said. "This one isn't even a stage smile - this is a pained smile. That might be just having a couple of bad days. I don't know. It really worries me. I think she's under too much pressure.

"There's a high price to pay to be married to that family."

In his latest interview, Thomas vowed to fly to Britain without a royal appointment if the wall of silence from Kensington Palace continues.

"It's sad that it's got to this point. I'm sorry it's come to this. Yes, some of it is my fault. But I've already made it clear that I'm paying for this for the rest of my life," he told the publication.

The retired lighting direc­tor also made it clear he wanted to meet with the royal family.